01 Incazelo Yama-Antioxidants Okudla
Ama-Antioxidants abhekisela ezithasiselweni zokudla ezingavimbela noma zibambezele i-oxidation yokudla futhi andise impilo yeshalofu. Ziningi izinto ezine-antioxidant effect, kodwa ama-antioxidants angasetshenziswa ekudleni kufanele ahlangabezane nalezi zimo ezilandelayo:
① abe nomthelela omuhle kakhulu wokunqanda{0}}i-oxidation;
② zona kanye nemikhiqizo yazo yokubola akuwona-ubuthi futhi awanangozi;
③ ukuzinza okuhle, kungahlalisana nokudla, Akunawo umthelela ezicini zezinzwa zokudla (kuhlanganise nombala, iphunga, ukunambitheka, njll.);
④Kulula ukuyisebenzisa futhi kushibhile.
02 Ukuhlukaniswa kwama-antioxidants okudla
Ngokusho komthombo, ingahlukaniswa ngama-antioxidants okwenziwa (njenge-BHA, BHT, PC, njll.) kanye nama-antioxidants emvelo (njengetiye polyphenols, i-phytic acid, njll.).
Ngokuvumelana ne-solubility, ingahlukaniswa ngezigaba ezintathu: uwoyela-oncibilikayo, amanzi{1}}oncibilikayo kanye ne-facultative. Uwoyela-ama-antioxidant ancibilikayo afaka i-BHA, i-BHT, njll.; amanzi-ama-antioxidant ancibilikayo afaka uvithamini C, ama-polyphenols etiye, njll., kanye nama-antioxidant ancibilikayo afaka i-ascorbyl palmitate.
Ngokwendlela yesenzo, ingahlukaniswa ngama-absorber ama-radical wamahhala, ama-ion chelators ensimbi, ama-oxygen scavengers, ama-peroxide decomposers, ama-enzyme antioxidants, ama-absorber ultraviolet noma ama-singlett oxygen quenchers.
03 Indlela yokusebenza yama-antioxidants okudla
1. Inciphisa okuqukethwe komoyampilo ohlelweni lokudla ngomphumela wokunciphisa wama-antioxidants;
2. Kuwukuphazamisa ukusabela kweketango enqubweni ye-oxidation nokuvimbela inqubo eyengeziwe ye-oxidation;
3. Iwukubhubhisa nokwenza buthaka umsebenzi we-oxidase, ukuze ingakwazi ukugqugquzela ukusabela kwe-oxidation;
4. Iwukuvala izinto ezingase zibangele futhi zibangele ukusabela kwe-oxidation, njengama-ion ensimbi ayinkimbinkimbi angadala ukusabela kwe-oxidation.
04 Ama-Antioxidants Emvelo
Izinhlobonhlobo zama-antioxidants emvelo avunyelwe ukusetshenziswa ezweni lami ziyanda. Ngaphandle kwe-vitamin E (i-tocopherol), efakwe kuma-fortifiers okudla okunomsoco, okwamanje kukhona uchungechunge lwe-ascorbic acid, i-polyphenols yetiye, i-phytic acid, i-licorice antioxidants, i-cephalin, i-rosemary Incense extracts, njll, ikakhulukazi inani le-sodium erythorbate landa ngokushesha unyaka nonyaka.
1. Ivithamini C
Eyaziwa nangokuthi L-i-ascorbic acid, efushanisiwe ngokuthi i-VC, iyikristalu emhlophe noma ephuzi kancane noma impushana, ayinaphunga, imuncu, indawo encibilikayo engu-190-192℃(ukubola). Incibilika kalula emanzini futhi izinzile uma kuqhathaniswa nesimo esomile, kodwa isisombululo esinamanzi sikhishwa kalula nge-oxid futhi sibola, ikakhulukazi kuzixazululo ezingathathi hlangothi noma ze-alkaline; Ama-ion ensimbi esindayo angathuthukisa i-oxidation nokubola kwawo, futhi umbala kancane kancane uba mnyama lapho uvezwa ekukhanyeni. Ngakho-ke, kufanele ivalwe kude nokukhanya. gcina.
2. Ama-polyphenols etiye
Ama-polyphenols etiye ayikilasi lama-polyhydroxy phenolic compounds aqukethwe emaqabunga etiye, afushanisiwe njenge-TP. Izingxenye zamakhemikhali eziyinhloko ama-catechins (flavanols), ama-flavonoid nama-flavonols, ama-anthocyanins, ama-phenolic acid nama-depsidic acid, ama-phenol a-polymerized nezinye izinhlanganisela. Phakathi kwazo, izinhlanganisela ze-catechin ziyizingxenye eziyinhloko zetiye polyphenols, ezibalelwa ku-65% kuya ku-80% yenani eliphelele letiye polyphenols. Izinhlanganisela ze-catechin ikakhulukazi zihlanganisa i-catechin (EC), i-gallocatechin (EGC), i-catechin gallate (ECG) kanye ne-gallocatechin gallate (EGCG).
Tea polyphenols have strong antioxidant effects, especially the ester catechin EGCG, whose reducibility can even reach 100 times that of VC. Among the four main catechin compounds, the antioxidant capacity is EGCG>EGC>ECG>EC>I-BHA, kanye namandla okulwa ne-antioxidant ayanda ngokwanda kwezinga lokushisa, futhi umphumela we-antioxidant emafutheni ezilwane namafutha ungcono kunawoyela wemifino. Uma isetshenziswa ngokuhlanganiswa ne-VE, VC, lecithin, citric acid, njll., inomphumela osobala we-synergistic, futhi ingasetshenziswa ngokuhlanganiswa namanye ama-antioxidants.
3. I-Phytic acid
Eyaziwa nangokuthi i-cyclohexanol hexaphosphate, phytate, PA ngamafuphi, okuphuzi ukuya kokuphuzi{0}}uketshezi lwe-viscous onsundu, i-asidi eqinile esixazululweni esinamanzi, ukubola kalula lapho ibhekene nezinga lokushisa eliphezulu. I-Phytic acid ine-antioxidant enamandla enamandla, futhi uma ixubene ne-VE, inomphumela wokuphindaphinda we-antioxidant. Amaqembu ayi-12 acid hydroxyl kumolekyuli ye-phytic acid angachelate ama-ion ensimbi, akwazi ukwenyusa ama-ion ensimbi ngokwesilinganiso ngamanani aphansi e-pH, futhi angakha ama-chelate angancibiliki nawo wonke amanye ama-ion ensimbi ane-polyvalent ngamavelu e-pH aphakathi nendawo noma aphezulu. inhlanganisela.
